Speed and Flow Rate for Draft/Ooze Shields?

[rachael7 74]

Can anyone tell me what speed and flow rate the draft shield and ooze shield follow?  I'm having some difficulty with a draft shield that looks like underextrusion on one of the two filaments (dual material print on an S5), but I don't know which speed or flow rate setting controls the draft/ooze shield, so I don't know which one to adjust. Thanks!

[MariMakes 206]

Hey @rachael7,

 

I've never printed with draft shields on S5s! It's not very common to print an ooze shield on newer Ultimaker Generations. 

What problem are you trying to solve with a draft/ooze shield? 

 

I'll have to check with our Print Profile Experts if they have any tips regarding the flow settings. 

[rachael7 74]

1 hour ago, MariMakes said:

Hey @rachael7,

 

I've never printed with draft shields on S5s! It's not very common to print an ooze shield on newer Ultimaker Generations. 

What problem are you trying to solve with a draft/ooze shield? 

 

I'll have to check with our Print Profile Experts if they have any tips regarding the flow settings. 

Hi MariMakes,

 

Thanks for the reply! I'm printing with some high temp materials, like Nylon, Polycarbonate, and AquaSys120, that really benefit from higher chamber temps. With the chamber limited to 50C and rarely reaching even that temp, it's really not warm enough for some materials I'd like to print. I find that using a draft shield and a hot build plate can get the air temp immediately around the print up another 5-10 degrees, which may not sound like much, but its enough to make a meaningful difference in layer adhesion and hence z-axis tensile strength.

 

I suspect the draft shield might be taking its flow and speed settings from the prime tower settings, but confirmation on that would be very helpful.  Thank you very much for your assistance.

[PaulKuiper 11]

The linewidth of the draft shield is the same as the wall, however the speed and flow rate is lower.
The speed of the draft shield is equal to the initial layer speed. You can increase the initial layer speed to the normal printing speed if you ensure you prepared your build surface with the correct glue. Hope that helped.

[rachael7 74]

1 hour ago, PaulKuiper said:

The linewidth of the draft shield is the same as the wall, however the speed and flow rate is lower.
The speed of the draft shield is equal to the initial layer speed. You can increase the initial layer speed to the normal printing speed if you ensure you prepared your build surface with the correct glue. Hope that helped.

Very helpful, thank you. Is the flow rate for the shield likewise taken from the initial layer flow rate? Thanks again!